We, each of us, are at a place in our lives because of innumerable circumstances, and we, each of us, have a responsibility (if we do not like where we are) to move along life's road, to find a better path if this one does not suit, or to walk happily along this one if it is indeed our life's way. Changing even the bad things that have gone before would fundamentally change who we are, and whether or not that would be a good thing, I believe, it is impossible to predict.
So I take my past experiences... and try to regret nothing.
-Drizzt Do'urden

In hindsight, I am able to examine or interpret any one object or thought either of my own, or others. To find tiny specifics wrong OR right, of my own interpretation and also find any number of solutions, or clarifications on the matter to help further understand or master the current thought, object, or task.